ASTROSAT CZTI

Data Quality Report

Orbit 13166

Creation date: 2024-06-27T16:37:06.871983
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A04_094T01_9000001942_13166cztM0_level2.evt modeM0/AS1A04_094T01_9000001942_13166cztM0_level2_quad_clean.evt
Size (bytes)508,466,88080,245,440
Size484.9 MB 76.5 MB
Events in quadrant A3,339,984494,004
Events in quadrant B4,529,105487,587
Events in quadrant C3,115,218502,780
Events in quadrant D3,958,630477,311

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142633
B0180912
C0138242
D0165472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6715901.340283%
B67156189.203276%
C6715801.191363%
D67152944.378258%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 8491 6718 0 0 0.00% 0.00%
B 8491 6718 283 283 3.33% 4.21%
C 8491 6718 0 0 0.00% 0.00%
D 8491 6718 173 173 2.04% 2.58%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 12 189 141001 848.99 810 790 165.2
A 1 162 27116 159.41 810 790 165.2
A 8 15 19444 112.95 810 790 165.2
B 4 239 1356968 9185.65 771 750 147.6
B 0 189 51819 345.89 771 750 147.6
B 3 209 30022 198.26 771 750 147.6
C 15 208 10025 50.02 796 800 184.4
C 13 61 5690 26.51 796 800 184.4
C 3 202 2029 6.66 796 800 184.4
D 1 52 468902 2441.44 784 760 191.7
D 14 34 304390 1583.48 784 760 191.7
D 10 157 153825 798.26 784 760 191.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter